Moved CrxInstaller and CrxInstallerError into extensions namespace

chrome/browser/download/download_crx_util.h

Index: chrome/browser/download/download_crx_util.h
diff --git a/chrome/browser/download/download_crx_util.h b/chrome/browser/download/download_crx_util.h
index 7115f2208523ccdad4931d083a66cff4d6884584..fbd2da805e19cac098e92b1fe28a383ce3e56e03 100644
--- a/chrome/browser/download/download_crx_util.h
+++ b/chrome/browser/download/download_crx_util.h
@@ -12,7 +12,6 @@
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 
-class CrxInstaller;
 class ExtensionInstallPrompt;
 class Profile;
 
@@ -20,6 +19,10 @@ namespace content {
 class DownloadItem;
 }
 
+namespace extensions {
+class CrxInstaller;
+}
+
 namespace download_crx_util {
 
 // Allow tests to install a mock ExtensionInstallPrompt object, to fake
@@ -33,7 +36,7 @@ void SetMockInstallPromptForTesting(ExtensionInstallPrompt* mock_prompt);
 // ...).  The installer does work on the file thread, so the installation
 // is not complete when this function returns.  Returns the object managing
 // the installation.
-scoped_refptr<CrxInstaller> OpenChromeExtension(
+scoped_refptr<extensions::CrxInstaller> OpenChromeExtension(
     Profile* profile,
     const content::DownloadItem& download_item);